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Divestitures and Investment Activities - Narrative (Details) $ in Millions		1 Months Ended		3 Months Ended		6 Months Ended
	Aug. 04, 2021 USD ($) Item	Oct. 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Liability				$ 424.9		$ 424.9		$ 821.9
Gain on sale						151.4
Proceeds from shares sold							$ 50.9
Gain on sale of minority investment							47.9
Saudi Digital Payments Company
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Investment in Saudi Digital Payments Company		$ 200.0
Ownership (as a percent)		15.00%
Private Company
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from shares sold			$ 50.9
Gain on sale of minority investment					$ 47.9		47.9
Other Assets | Commercial Agreement | Certain Rights
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Investment value				36.0		36.0		36.0
Business Solutions | Asset Held for Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration from sale of business	$ 910.0
Number of closings | Item	2
Revenues				35.7	99.3	124.8	195.8
Operating expenses				27.8	$ 85.1	90.4	$ 166.9
Divestiture costs directly associated with transaction				0.8		4.0
Unrealized currency translation gains						17.8
Liability				424.9		424.9		$ 821.9
Gain on sale						151.4
Other expense				8.1		10.9
Business Solutions | Asset Held for Sale, Not Discontinued Operations | Other liabilities | European Union and United Kingdom
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Liability				$ 390.0		$ 390.0

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